Add unit tests for FontPlatformData::hasSpaceInLigaturesOrKerning

LayoutTests/TestExpectations

 crbug.com/504613 paint/images/image-backgrounds-not-antialiased.html [ ImageOnlyFailure ]
 crbug.com/502531 fast/borders/border-antialiasing.html [ ImageOnlyFailure ]
 
 crbug.com/474117 compositing/overflow/overflow-positioning.html [ ImageOnlyFailure Pass ]
 
 crbug.com/487281 [ Mac ] fast/forms/menulist-narrow-width.html [ ImageOnlyFailure ]
 
 crbug.com/499688 virtual/rootlayerscrolls/fast/scrolling/background-paint-scrolled.html [ Pass Crash ]
 
 crbug.com/427606 virtual/gpu/fast/canvas/canvas-shadow-source-in.html [ Pass ImageOnlyFailure NeedsManualRebaseline ]
@@ skipping 789 matching lines @@
 
 crbug.com/323301 [ Android ] http/tests/media/media-source/mediasource-play-then-seek-back.html [ Pass Crash ]
 crbug.com/302729 [ Android ] http/tests/media/media-source/mediasource-seek-during-pending-seek.html [ Failure ]
 crbug.com/302729 [ Android ] http/tests/media/media-source/mediasource-seek-beyond-duration.html [ Failure ]
 
 # Pixel captures are currently totally broken on Android Nexus4's at the moment.
 crbug.com/293932 [ Android ] css3/images/optimize-contrast-image.html [ ImageOnlyFailure Timeout Pass ]
 
 crbug.com/309675 compositing/gestures/gesture-tapHighlight-simple-longPress.html [ ImageOnlyFailure ]
 
+Bug(eae) [ Mac ] virtual/antialiasedtext/fast/text/complex-preferred-logical-widths.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] editing/selection/vertical-rl-rtl-extend-line-forward-p.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/text/complex-preferred-logical-widths.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] editing/selection/vertical-rl-rtl-extend-line-backward-br.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/text/emphasis.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/css/text-rendering.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/lists/009-vertical.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/writing-mode/vertical-lr-replaced-selection.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] editing/selection/vertical-rl-rtl-extend-line-backward-p.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/lists/003-vertical.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] fast/css/vertical-text-overflow-ellipsis-text-align-right.html [ NeedsRebaseline ]
+Bug(eae) [ Mac ] virtual/antialiasedtext/fast/text/emphasis.html [ NeedsManualRebaseline ]
+Bug(eae) [ Mac ] fast/writing-mode/vertical-rl-replaced-selection.html [ NeedsRebaseline ]
+
 crbug.com/508398 [ Android ] editing/caret/caret-color.html [ ImageOnlyFailure Pass ]
 
 # Linux uses the system's NSS library for its WebCrypto implementation, whereas
 # Windows, Mac and Android use a statically-linked BoringSSL.
 # As such:
 #
 #  (a) Support for RSA is not guaranteed as the system NSS may be ancient.
 #  (b) RSA-PSS, AES-CTR, ECDH, ECDSA, and HKDF have only been implemented for
 #      BoringSSL based WebCrypto.
 #
@@ skipping 2738 matching lines @@
 crbug.com/509025 [ Yosemite ] tables/mozilla_expected_failures/collapsing_borders/bug41262-6.html [ Failure ]
 crbug.com/509025 [ Yosemite ] tables/mozilla_expected_failures/core/col_span2.html [ Failure ]
 crbug.com/509025 [ Yosemite ] tables/mozilla_expected_failures/core/conflicts.html [ Failure ]
 crbug.com/509025 [ Yosemite ] tables/mozilla_expected_failures/other/empty_cells.html [ Failure ]
 crbug.com/509025 [ Yosemite ] transforms/2d/zoom-menulist.html [ Failure ]
 crbug.com/509025 [ Yosemite ] transforms/3d/general/perspective-non-layer.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/complex-text-opacity.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/drawBidiText.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/emoticons.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/emphasis-complex.html [ Failure ]
-crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/emphasis.html [ Failure ]
+#crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/emphasis.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/001.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/002.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/003.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/bidi-listbox-atsui.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/bidi-listbox.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/bidi-menulist.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/bidi-mirror-he-ar.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/bold-bengali.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/complex-character-based-fallback.html [ Failure ]
 crbug.com/509025 [ Yosemite ] virtual/antialiasedtext/fast/text/international/complex-joining-using-gpos.html [ Failure ]
@@ skipping 24 matching lines @@
 crbug.com/505086 css3/filters/effect-combined-hw.html [ NeedsManualRebaseline ]
 # [robertphillips] re-enable this suppression after the Skia DEPS roll has landed
 #crbug.com/505086 css3/filters/effect-reference-zoom-hw.html [ NeedsManualRebaseline ]
 
 crbug.com/509855 webaudio/stereopannernode-no-glitch.html [ Pass Timeout ]
 
 Bug(epertoso) fast/events/window-onerror-11.html [ NeedsManualRebaseline ]
 Bug(epertoso) fast/events/window-onerror-12.html [ NeedsManualRebaseline ]
 Bug(epertoso) virtual/pointerevent/fast/events/window-onerror-11.html [ NeedsManualRebaseline ]
 Bug(epertoso) virtual/pointerevent/fast/events/window-onerror-12.html [ NeedsManualRebaseline ]